Feancois baymond



- (No Model.) P. RAYMOND.

DOUGH MIXER.

"810. 288,511. Patented Aug. 218, 1888.

N. Usui vnmmumugnpher. wamngm uc.

UNITED STATES PATENT Ormea.

FRANCOIS RAYMOND, OF 1WOOD HAVEN, ASSIGNOR TO THE LAL-ANCE 8L GROSJEAN MANUFACTURNG COMPANY, OF NEWT YORK, N. Y.

DOUGH- SPECIFICATION forming part of Letters Patent `No. 283,511, dated August 21, 1883. vAmlieation filed May 3, 1883. (No model.)

T rtl!! wilt-0m t may concern:

Be it known that I, Fnnneois RAYMOND, of Wood Haven, in the county of Queens and State of N ew York, have invented a new and useful Improvementin Dougl1-Mixers, of which the following is a specification, reference being had to the accompanying drawings, forming a part of the saine, in which- Figure l is a vertical central seetion of a dough-mixer which embodies my invention; and thev remaining Figs. 2 to 7, inelusive, are detail views of the several parts of the machine, to be particularly deseri bed hereinafter. Fig. 8 is a perspective view of the parthereinatter designated by the letter B, showing said part removed from the case D.

My invention relates to a dough'mixer in which the work is done by two rotating stirrers in a suitable vessel, the sti rrers being constructed so as to rotate on their respective axes, while the axes revolve around the eentral axis of the vessel.

It also relates to attaching the mixer to a table, and the det-achingl it therefrom; and it consists in the devices and theirv combinations hereinafter described and claimed.

A is a hollow pan or vessel, preferably made tapering from the' top to the bottom and ilaring at the top, as shown in Fig. 1.

B B are the stirring-blades, respectively attached to axleshafts da', that are journaled at their upper ends in a revolving disk, e, in which long bearings for the journals are provided bf the projections d d on the under side thereof, that are drilled through to receive the journal fj".

D is a circular case or rim that is supported centrally over the vessel A. by the curvedarms C C', that extend from it on opposite sides, and the outer or lower ends of which rest upon brackets b Zn', secured to the flaring rim of the said vessel. The said brackets are provided with vertical sockets into which fit pins or studs c e', thus holding the said arms C G and the case D securely in place on the vessel, and at the saine time permitting` their ready removalfrom it by a direetlyupward movement. Around the inner face of the case D, near the bottom edge, are formed gear-teeth g, as seen are so adjusted that the blades are set rela plainly in Fig. 5. The disk e ts loosely into 5o the lower end of the ease D against the lowerY ends of said gear-teeth g.

m is a beveled-gear annulus, which is iitted loosely into the said ease down upon the upper endsof said, gear-teeth g, and the said disk e and annulus m are fastened together by screwbolts that pass through holes in the said disk and into screw-threaded holes a an in the annulus on, so that they must Y, revolve together within the said ease, the former below and the 6o latter above the gear-teeth y, theyY being held within the case by the said teeth. Hollow studs are formed on the upper faee of the disk e, and the screw-bolts which fasten the said disk and the annulus together pass through these hollow studs, one of which is shown at t, Fig. l. The annulus m rests down upon the upper ends of these studs and is' screwed fast thereto. The length of the studs is such that the said disk and annulus may revolve, one 7o above and the other below the teeth g, without gripping the said teeth between them. On the upper ends of the shafts a a, which projeet through the disk e, as shown in Fig. l, are fixed small gear-wheels t' 17, one of which, vt", 75 meshes with the gear-teeth g on the case D. Between the gear 'i and the said teeth is an intermediate gear, j ournaled in the said disk e and annulus m, that meshes with both.

E is the drivin g-shaft, provided with a crank, 8o F.' It is mounted to revolve iu bearings on the upper end of the ease, one bearing being in a lug, j, formed on the side of the case D at the top of the arm O, and the, other at u in the cap B2, which is screwed down upon the said lug j. This cap has a recess, yuf, anda beveled gear, 7L, on the shaft E is in this recess, and thus covered up. A curved bar, B3, extends from. the cap B2 over across the ease D, and is secured by a screw at l to the opposite side thereof. This arrangement affords a firm support to the cap B, and provides a handle by which the stirring-blades and the ease and its connections may be taken hold of. l The gearsl tivel5,r to each other, as shown in Fig. l-that is to say, when the plane of one blade coin eides with the plane of the axis of the other the vessel A.

the planes of the two blades are at right angles to each other, and so that the distance between their axes is only about one-half the breadth of the upper part of one of the blades. Each in revolving will thus sweep a circle extending from the inner face of the vessel on one side near A to the `axial shaft of the other on the opposite side. .As will be manifest, when these blades are revolving coincidently as their halves on one side of their axes approach each other the dough will be pressedtogether between them, while at the same time the two opposite halves as they recede from each other will pull the dough on that side asunder. They will thus have the peculiar effect of compressing the dough on one side of the vessel and pulling it on the other-an action whichr is most favorable not only to a very complete kneading of the dough, but also of repeatedly pulling it, which, as is well known to bakers, imparts to the dough a fine cellular structure, which is very desirable. By turning the crank F a rotary motion is given to the annulus m and disk e through the gear rh. By this motion the stirring-blades will be carried around within the vessel A, their axes describing a circle having for its center the center of the said disk e, thus causing the stirring-blades as they revolve on their aXes to act on the dough throughout all parts of the interior surface of axes by the engagement of their gears c" i', the former with the fixed teeth g of the case and the latter with the gear i2, and that with the said fixed teeth. The blades B B are provided with slotted openingsvhich greatly assist in the before-named compressing and pulling of the dough. Y

In order to conveniently hold the vessel A iiXedly in place while the stirrer is being operated, I provide a fiat ring, I, of peculiar construction, a top face View of which is shown in Fig. 2, and a cross-section on line x x of same in Fig. 3, to which the vessel A is to be The blades are turned on. their attached, as shown in Fig. 1. On the outer edge of the face of said ring is an upwardlyprojecting rib, o, on which are formed three inwardly-projecting flanges, n n n2, which set inclined lengthwise to the face of the ring, thus forming wedge-shaped spaces between them and the ring. `On the bottom face of the vessel A are fixed three bracket-shaped feet, one of which is shown at s, Fig. l. Now, by setting the vessel down upon the ring with the said feet between 'the said flanges, and then turning the vessel on its center the feet will slip in under the flanges and be held firmly. rlhe vessel may be disengaged by reversing themotion. The ring I may be screwed down upon a table, or preferably it may be attached in any suitable way to a screw-clamp, G, and the clamp secured to the table as represented in Fig. l.

Vhat I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination of the vessel. A, the stirring-blades@ B', the axle-shafts a a', the revolving disk e, and gear-annulus m, the driving-shaft E, the gearsfh i i i?, and the case D, and means, as described, for supporting and connecting said case with the vessel A, provided with the gear-teeth g, all constructed and arranged to operate as and for the purpose described. i

2. The combination of the vcssel'A, provided with the socket-brackets b b, the stirringbladesBB', the shafts a, a', andoperating mechanismfas described, the case D, and supporting-arms C C', provided with the Ipins c c, that fit into thesockets in said brackets, whereby the said stirring-blades may be removed from or placed in the said vessel by a direct vertical movement, as and for -the purpose described. FRANCOIS RAYMOND.

In presence of- A. G. N. VERMILYA, A. S. FITcH. 

